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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        
    </div>

    <script src="https://unpkg.com/vue@next"></script>
    <script>   
        //根组件的配置
        const app = Vue.createApp({
            data(){}
        });
        
        //子组件，注册组件：组件需要先注册，后使用
        app.component("Childcomponent",{
            data(){},
            methods:{
               
            },
            template:`
            
            `
        });

        //根组件
        const rootComponent = app.mount("#app");
    </script>
</body>
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